JP2018516753A - Nanobubble and hydroxyl radical generator and system for treating sewage without using chemicals using the same - Google Patents

Abstract

The present invention relates to a nanobubble and hydroxyl radical generator, and more particularly, an air supply unit; an inlet pipe connected to the air supply unit for introducing a fluid; a pump connected to the inlet pipe; A nanobubble and a hydroxyl radical generator comprising: a connected drive motor; a rotating blade connected to a drive shaft of the drive motor; and a fixed blade connected to the inner wall of the pump and disposed between the rotating blades; and nanobubble Using chemicals, including discharge tubes connected to nanobubbles and hydroxyl radical generators, for discharging the generated fluid, the rotary blades or fixed blades or both circumferential surfaces are tilted in one direction The present invention relates to a system for treating sewage without using it. As such, the present invention provides for the dissolution rate in such a manner that the circumferential surface of each blade is tilted to induce air and fluid disturbances, thereby facilitating air and fluid atomization and mixing. A nanobubble and hydroxyl radical generator that can be further enhanced is provided.

Description

  The present invention relates to a nanobubble and hydroxyl radical generator capable of generating nanobubbles and hydroxyl radicals by purifying and mixing air and fluid, and increasing the dissolution rate of air or ozone in the fluid, and the same apparatus. The present invention relates to a system for treating sewage without using chemicals.

BACKGROUND OF THE INVENTION In general, algae or aquatic plants that inhabit wetlands or ponds, such as golf course hazards, thrive while relying on sunlight, water and mineral nutrients such as nitrogen or phosphorus dissolved in water. Inorganic nutrients are provided in rainwater or irrigation water flowing into the pond.

  However, the aforementioned mineral nutrients constantly flow in and the algae or aquatic plants overgrow, exacerbating eutrophication and thus causing the red tide phenomenon.

  If the red tide phenomenon is not addressed, the dissolution rate decreases, which causes the algae to wither. The above-mentioned withered algae and the like are degraded by aerobic microorganisms.

  When the water cannot flow and stagnates, the oxygen in the water begins to be degraded by aerobic microorganisms and is therefore further deficient. When an anaerobic environment is reached in which oxygen is absent or lacking oxygen, anaerobic organisms generate hydrogen sulfide or methane, which causes the odor of the pond.

  Wetland or river water quality is generally a way to increase the metabolism of aerobic microorganisms by increasing the amount of oxygen dissolved in the water by pumping the water, mainly by using a blower to install the acid base in the depth. Improved using.

  However, the method using a blower has drawbacks such as an insufficient utilization rate of the acid base tube and a non-smooth supply of dissolved oxygen. Therefore, it is true that the effect of improving water quality is not good for capital investment.

  In particular, the growth of algae during the summer season contaminates the entire wetland and generates a bad odor, which is not suitable as a solution.

  In addition, wetlands or water hazards in golf courses are used as obstacle areas along with terrain in the field. These ponds quickly rot because their pond bottoms are concrete or waterproof to prevent stored water from leaking into the ground and reducing flow or backflowing to the field.

  In addition, pesticides are often used in excess to manage field or green turf, causing residual pesticides to flow into the pond, further aggravating water quality.

  To this end, methods have been applied in the past to prevent pond contamination, usually by installing a fountain in the pond or using special enzymes. However, the installation of the fountain simply circulated the water and did not purify the sewage. Although the use of special enzymes has been effective in removing contaminants, it is very expensive.

  Korean Patent Application Publication No. 10-2007-0062060 (Patent Document 1) (June 15, 2007) is a conventional method for solving the above problems. In this patent, a planting pocket in which a submerged plant can grow and a net containing charcoal are connected and configured as an integral type.

  However, this configuration cannot purify all of the water in the golf course hazard. This configuration works only to a limited extent.

  Also, many planting pockets should be installed in order to purify or improve the water of all hazards and therefore difficult to equip and maintain. In addition, the planting pockets should be changed regularly or maintained regularly, thus making it difficult to maintain and increasing maintenance costs.

  In addition, the dissolved air flotation solid-liquid separation system at the present sewage sewage treatment plant is to install a pump that provides water, an air compressor that inserts air, and a pressure tank to generate nano-sized microbubbles in the raw water. Separate the solid and liquid.

  However, this system has the disadvantage of requiring a lot of pump power and a lot of equipment including air compressor and pressure tank. Therefore, a large area is required and the cost is increased.

Korean Patent Application Publication No. 10-2007-0062060

DETAILED DESCRIPTION OF THE INVENTION Purpose The present invention has been developed to solve the aforementioned problems. The present invention provides nanobubbles that can promote the purification and mixing of air and fluid by increasing the dissolution rate by forming an inclination on the cylindrical surface of each blade in the pump to induce air and fluid turbulence phenomena and The present invention provides a hydroxyl radical generator.

  The present invention is to promote the turbulence phenomenon of air and fluid by introducing a vortex promoting portion in which the side surfaces of the rotary blade and the fixed blade are inclined.

  The present invention extends the length of the flow path by rationalizing the layout structure of the rotary blades and fixed blades, and more efficiently generates nanobubbles and hydroxyl radicals by controlling the hit flow rate by each blade. It is.

  The present invention is for maximizing the cavitation effect by changing the pressure of the discharged fluid by introducing a partition wall into the outlet pipe of the pump.

  The present invention is for treating non-chemical sewage treatment systems using nanobubbles and hydroxyl radical generators to treat sewage at low cost and at the same time prevent secondary contamination by coagulant polymer, This has a great economic effect by reducing the power of the pressure levitation tank of the sewage sewage treatment plant and reducing the number and installation area of equipment due to the above-mentioned features.

  The nanobubble and hydroxyl radical generator according to the present invention comprises a pump capable of inflow and outflow of fluid; a drive motor connected to one side of the pump; and a large diameter and a small diameter installed on a rotating shaft of the drive motor. A rotary vane having a layer structure of several blades classified as follows: installed on the inner wall surface of the pump, inserted and combined at a certain distance corresponding to the large and small diameters of the rotary vane, and Fixed blades composed of several blade layers classified into large and small diameters; a plurality of blades installed on the rotary shaft of the drive motor and arranged at the pump inlet in front of the rotary blades and fixed blades A plurality of chambers arranged between the impellers so that a fluid carried by the rotation of the impeller passes therethrough; Or an air supply unit that supplies at least one of ozone; and the fluid discharged to the outflow side is circulated back to the inflow side by connecting the inflow side and the outflow side of the pump. It consists of a recirculation pipe. The air supply unit is connected to the recirculation pipe. The connection part of the said supply pipe and a recirculation pipe is comprised by the venturi pipe comprised by a bottleneck part and a pipe expansion part.

  The rotating blades of the nanobubble and hydroxyl radical generator according to the present invention are characterized by inclusion of a larger first inclination in which the inclination of the cylindrical surface of each blade is formed in a direction opposite to the rotating direction of the rotating blades. To do.

  The stationary blades of the nanobubble and hydroxyl radical generator according to the present invention are characterized by inclusion of a larger second inclination, in which the cylindrical surface inclination of each blade is formed in a direction opposite to the first inclination of the rotating blade. And

  The rotating blades, stationary blades or both blades of the nanobubble and hydroxyl radical generator according to the present invention are characterized by the formation of a vortex facilitator formed to be inclined with respect to the radial line.

  The rotary blade according to the present invention is composed of several first small diameters arranged in a layered structure on the rotation shaft of the drive motor and several first large diameters arranged between the first small diameters. .

  The fixed blade according to the present invention is arranged in a layered structure by being fixed to the inner wall of the pump, and between several second small diameters corresponding to the first large diameter of the rotary blades, and between the second small diameters It is arranged and has a second large diameter corresponding to the first small diameter of the rotary blade.

  Each large diameter disposed between the small diameters of the rotating and fixed blades according to the present invention is layered as one or more layers, but the number of layers increases at the outlet rather than at the fluid inlet.

  In order to promote the generation of nanobubbles by guiding the pressure change of the discharged fluid, it is characterized in that more partition walls are provided in the outflow pipe.

  The diaphragm according to the present invention is connected to a wall provided in the outflow pipe, several small-diameter portions formed in the wall, and a small-diameter portion. The diaphragm is configured to include an enlarged large diameter portion.

  The diaphragm according to the present invention is composed of a plurality of diaphragms. Since the diaphragms are separated from each other, a cavitation space is formed between the diaphragms.

  In accordance with the present invention, there is provided a non-chemical sewage treatment system using the nanobubble and hydroxyl radical generator configured as described above. In this system, one or more tanks having a constant width and length are connected or arranged in a row. The tanks are separated by diaphragms, and runoffs for movement or discharge of treated water in the tanks are formed in each diaphragm. The tank is divided into an influent water treatment chamber and a treated water storage. A treated water transfer pipe and a treated water return pipe connected to the outflow side and the inflow side of the pump are inserted into the inflow water treatment chamber and the treated water storage part, respectively. The supply pipe is connected to the inflow water treatment chamber of the forefront tank via the raw water inlet for supplying contaminated raw water. The influent water treatment chamber and the treated water reservoir are configured in such a way that treated water flows from the treatment chamber to the reservoir through a through-hole in the wall that separates the two. It is configured such that at least some of the fluid in the treated water reservoir is supplied to the influent water treatment chamber while passing through the nanobubble and hydroxyl radical generator. In the inflow water treatment chamber, a cutoff valve with which nano bubbles collide is provided at a specific position between the through hole and the end of the treated water transfer pipe. Above the inflow water treatment chamber is provided a conveyor means having a plurality of transfer plates for filtering contaminated raw water or sludge and impurities in the inflow water.

EFFECT OF THE INVENTION The nanobubble and hydroxyl radical generator according to the present invention dissolves by facilitating the purification and mixing of air and fluid by forming an inclination on the cylindrical surface of each blade in the pump to induce turbulence phenomena. The rate can be further improved.

  The present invention maximizes the dissolution rate by further promoting air and fluid turbulence phenomena by introducing vortex facilitators that are formed in such a way that the sides of the rotating and stationary blades are tilted. , Hydroxyl radicals can be generated.

  The present invention streamlines the arrangement structure of rotating blades and fixed blades, controls the hit flow rate by each blade and extends the length of the flow path, thereby generating nanobubbles more effectively, thereby improving the reliability of the device. Can be increased.

  The present invention introduces a diaphragm into the outflow tube and guides the pressure change of the discharge fluid passing through the diaphragm. For this purpose, the diaphragm comprises a small caliber and an enlarged large caliber connected to the small caliber on the wall. Since the plurality of diaphragms are separated from each other, cavitation can be maximized by forming a cavitation space when the released fluid continuously passes through the diaphragm, the cavitation space, and the diaphragm.

  The present invention can generate more complete nanobubbles by introducing a recirculation pipe for returning the fluid released to the outflow pipe to the inflow pipe.

  The present invention provides a venturi pipe in a recirculation pipe and connects the air supply section to the venturi pipe, thereby using the pressure change of the recirculation fluid passing through the venturi pipe from the air supply section without using power. Electric consumption can be reduced by inhaling air. The present invention can also improve economic feasibility since no additional equipment is required to force air to be drawn.

  Since the present invention does not require a compressor and pressure tank equipment for injecting air, the pump power of the bubble generator of the pressure levitation tank of the sewage sewage treatment plant can be reduced by 50%, and the number and installation area of equipment can be reduced. . In this way, economic feasibility can be significantly increased.

1 is a cross-sectional view showing Example 1 of a nanobubble and hydroxyl radical generator according to the present invention. FIG. 2 is a cross-sectional view showing by enlarging the fluid flow that occurs around and inside the pump in the configuration of FIG. FIG. 3 is a cross-sectional view from different positions showing a combined state between a rotary blade and a fixed blade constituting the pump in FIG. FIG. 4 is a cross-sectional view constituting the angle of the edge of each blade constituting FIG. 3 in a different form. FIG. 4 is a cross-sectional view constituting the angle of the edge of each blade constituting FIG. 3 in a different form. FIG. 2 is a diagram showing a cross-sectional structure of a diaphragm located in an outflow pipe in the configuration of FIG. 1 as (a) a longitudinal sectional view and (b) a transverse sectional view. FIG. 6 is a diagram showing a flow of fluid passing through the diaphragm of FIG. It is a figure which shows Example 2 of the nano bubble and hydroxyl radical generator by this invention. FIG. 8 is an enlarged view of the fluid flow that occurs around and inside the pump in the configuration of FIG. Non-chemical sewage treatment according to the present invention using the nanobubble and hydroxyl radical generator of FIG. 1 to separate solid and liquid without using a pressure tank of a compressor and pressure levitation tank system for air injection in a sewage sewage treatment plant It is a figure which shows the front view of a system. Non-chemical sewage treatment according to the present invention using the nanobubble and hydroxyl radical generator of FIG. 1 to separate solid and liquid without using a pressure tank of a compressor and pressure levitation tank system for air injection in a sewage sewage treatment plant It is a figure which shows the top view of a system. FIG. 10 is a sketch showing the configuration of each tank of the non-chemical sewage treatment system of FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, nanobubble and hydroxyl radical generators according to the present invention will be described in more detail with reference to the accompanying drawings.

  The nanobubble and hydroxyl radical generator according to the present invention generates nanobubbles and hydroxyl radicals, and selectively purifies and mixes gases in the fluid, such as air, oxygen, and ozone, thereby increasing the dissolution rate, and the wetlands in the golf course. Can be provided to improve water quality by feeding hazards or other reservoirs, sewage treatment plants, aquariums or fish farms. Nanobubbles and hydroxyl radical generators can be used for food sanitization and purification, deodorization, purification systems, skin care, and the like. For reference, the OH radical is an oxygen anion substance generated in a plasma state. Also called hydroxyl radical. The hydroxyl radical is the radical ion of OH-. Hydroxyl radicals have a strong oxidizing power and are excellent in sanitization, sterilization, deodorization and decomposition. However, it does not harm the human body because it reacts with pollutants and then decomposes into oxygen and water. It has a sanitization rate of 2,000 times that of ozone and 180 times that of sun's UV rays. It also has the function of deodorizing and decomposing by reacting with almost any pollutant in air and water.

  1 to 6 show Example 1 of a nanobubble and hydroxyl radical generator according to the present invention. Basically, the nanobubble and hydroxyl radical generator (1) consists of a plurality of impellers (370), a pump (300) in which blades (330, 340) are embedded, a drive motor (320), and various sewage systems. Or an inflow pipe (200) connected to the inflow of the pipe (300) for supplying a circulating fluid, for example a fluid comprising treated water, and a part of the pump (300) corresponding to the inflow pipe Prepared in the outflow pipe (400) connected to the outflow section and the inflow section of the pump (300) for supplying external air or gas extracted from the air, such as ozone, oxygen, hydrogen, nitrogen, etc. By connecting the supplied air supply part (100), the inflow pipe (200) and the outflow pump (400), the fluid discharged from the outflow pipe is recirculated toward the inflow part of the pump (300). As a configuration including a recirculation pipe (600) for Is provided.

  The air supply part (100) can be connected to the inflow pipe, but it can be connected to one side of the recirculation pipe (600) that enters the inflow pipe (200) as shown in Figure 1 It can be configured to selectively mix ambient air or a gas, such as oxygen or ozone, into a fluid containing sewage or treated water supplied through a tube (200).

  For this reason, although not shown, the air supply unit (100) includes an oxygen generator that generates oxygen from the outside air, and an ozone generator that generates ozone by combining the oxygen generated by the oxygen generator and the outside air. Alternatively, it can be selectively included by selecting a particular supply device for supplying other gases such as hydrogen or nitrogen, respectively. The air supply also allows gas, such as air, oxygen or ozone, to be supplied at an appropriate flow rate when entering the recirculation pipe (600) or inlet pipe (200) through the supply pipe (100) In addition, a flow control device can be provided in the middle of the air supply pipe.

  The recirculation pipe (600) provides a more thorough mixing and purification of the fluid through two processes that recirculate the fluid that was first mixed and purified in the pump (300) back into the pump (300) Is to do. For this purpose, the recirculation pipe (600) is connected to each joint (J) of the pump inflow pipe (200) and outflow pipe (400) and flows at least some of the fluid released into the outflow pipe (400). Recirculate by returning to tube (200).

  On the other hand, the part where the supply pipe (120) and the recirculation pipe (600) meet is connected to the venturi pipe (700) in the form of a three-way valve. Gases, such as air, oxygen or ozone, supplied through the air supply pipe are mixed with the discharge fluid carried through the recirculation pipe (600) as it passes through the bottleneck spot of the venturi pipe (700). At this point, the discharge fluid automatically absorbs the gas carried through the air supply pipe (120) as its pressure suddenly drops and the flow rate increases greatly as it passes through the bottleneck spot of the venturi pipe (700). To do.

  When the venturi (700) is introduced in this way, the sudden change in the pressure and flow rate of the discharge fluid according to Bernoulli's principle facilitates the flow of air or gas, such as oxygen and ozone, through the supply pipe (12). Can be absorbed and mixed into the fluid. This is advantageous for improving economic feasibility, such as a significant reduction in electricity consumption, since no additional power source is required. Furthermore, the recirculation of the discharge fluid passing through the recirculation pipe (600) can be controlled and carried out several times if necessary, which can generate more complete nanobubbles, which makes the device reliable. Sex can be further strengthened.

  As described above, each of the inflow pipe (200) and the outflow pipe (400) of the pump is connected to the recirculation pipe (600) around the joint. On-off valves (210) (410) can be provided in the inflow pipe (200) and the outflow pipe (400) to control the flow rate of the fluid supplied or discharged and close the flow path.

  The nanobubble and hydroxyl radical generator (1) according to the present invention is configured by striking sewage or treated water and gas supplied through an inflow pipe (200), such as air, oxygen or ozone, with a plurality of blades (330, 340). Nanobubbles are generated by cavitation. For this purpose, a plurality of impellers (370) rotating by driving the motor shaft (360), fixed blades (340) fixed to the inner wall of the pump housing (310), and the motor shaft (360) are driven to rotate. A rotary blade (340) for guiding the relative rotation of the fixed blade (340) is provided in the pump (300). Desirably, the impeller (370) is located near the inflow portion of the pump (300), and the rotating blade (330) and the fixed blade (340) are located at an upper position behind the impeller (370) ( 370), the rotating blades are provided as an all-in-one type on the motor shaft (360). Also, water (sewage or treated water) carried by the rotation of the impeller (370) and one or more chambers through which ambient air or gas, for example oxygen and ozone, pass are located in the pump (300) for each impeller (370). It is desirable to be placed between them.

  In this multistage pump structure, the impeller (370) and the chamber (380) are alternately and repeatedly arranged. The impeller (370) is rotated by driving the motor shaft (360). Due to the rotational force, a fluid in which water and air, oxygen, or ozone are mixed is pumped to the inflow portion of the pump (300) and sent to the blades (330, 340) located above the impeller (370). In this process, when the fluid mixed with water and air, oxygen or ozone passes through the plurality of impellers (370) and the plurality of chambers (380) connecting the impellers, the blades (330, 340) The dissolution rate of the above-mentioned gas in the water sent to the water generates interaction with the rotating blades (330) and stationary blades (340) driven by the motor shaft (360), that is, the respective rotations generate nanobubbles, Is discharged from the discharge outlet (315) on the upper side of the pump housing (310) to the outflow side of the pump through the flow path (316).

  The unexplained mark “349” shown as an example in FIG. 2 is a clamping bolt. This clamps the stationary vane (340) to the inner wall (311) of the pump housing (310). The rotary vane (330) and the fixed vane (340) have a configuration in which each vane is laminated and combined as a multilayer structure having a constant thickness. The opposing surfaces of the rotating blade (330) and fixed blade (340) facing each other protrude with a certain length between the small calibers (333) and (343) and these small calibers (335) and (345). A plurality of large calibers (335) and (345) are formed. Here, it is desirable that the tip portions of the large calibers (335) and (345) and the small calibers (333) and (343) are formed as sharp edges (see FIG. 3). Furthermore, each large caliber of the rotary vane (330) and the fixed vane (340) has one large caliber in the lower part which is an inlet to which fluid flows in, and a plurality of large calibers in the upper part from which fluid flows out. It can be arranged as a form.

  This makes the mixing of water and gas smoother and, firstly, in the lower part, ie the inflow of fluid, the fluid is struck by one large caliber blade as a mixed fluid to be flowed without generating nanobubbles, but in small quantities The generation of nanobubbles, and second, the generation of more refined nanobubbles by generating the nanobubbles by hitting the fluid in which the primary nanobubbles are formed with a large caliber of a multi-layer blade at the upper part, that is, the outflow portion of the fluid. to enable.

  Further, as shown in FIG. 2, the insertion depth between the large caliber (335) (345) of the rotary blade (330) and the fixed blade (340) according to the present invention may be 0.5 times longer than the blade length. desirable. This can have the effect of extending the length of the flow path by allowing the large caliber (335) (345) of each blade to be inserted as deep as possible. As a result, when the connection area between each blade and the fluid is increased, a larger amount of mixed fluid can be applied, and smoother mixing and purification of water and gas can be performed.

  Further, the rotary blade (330) and the fixed blade (340) of this form can be arranged as a form in which the large calibers (335) and (345) are inserted in a state of crossing each other. In this state, between the large caliber (335) (345) and the small caliber (343) (333) facing each other, a flow gap with a certain width of the mixed fluid sent from the impeller (370) is formed. Is desirable (see Figure 2 or Figure 4).

  More specifically, the large caliber (335) of the rotating blades is caught in a state where it is inserted between the large calibers of the fixed blades at a certain distance, that is, the aforementioned flow gap. On the other hand, the large caliber (345) of the fixed blade (340) is sandwiched between the large caliber (345) of the rotating blade (330) in a state where it is inserted at a certain distance, that is, the aforementioned flow gap. Yes.

  When the motor (330) is driven from this structure, the rotary blade (330) combined with the motor shaft (360) rotates together. From now on, when the small caliber (333) and the large caliber (335) rotate between the large caliber (345) and the small caliber (343) of the fixed blade (340), respectively, the rotating blade (330) and the fixed blade ( 340) large caliber (335) (345) and small caliber (343) (333), respectively.

  At this time, the mixed fluid flowing in the flow gap between the rotary vane (330) and the fixed vane (340) flows between the large caliber (335) (345) and the small caliber (343) (333). Since it is divided into pieces by rotation, it is further refined and mixed. At this point, when the rotating blade (330) rotates at a constant high speed, the mixed fluid is purified and mixed to a nano size of less than 5 microns. Therefore, the dissolution rate of the fluid can be further increased.

  In particular, in the case of the nanobubble and hydroxyl radical generator according to the present invention, the cylindrical surface of each blade of the rotating blade (330) and / or the fixed blade (340) smoothly generates nano-sized microbubbles (hereinafter “nanobubble”). It is desirable to be formed so as to tilt in the same direction (see FIG. 4). For this purpose, the rotating blade (330) is formed such that the inclination (α) of the cylindrical surface of each blade is directed in the direction opposite to the rotating direction of the rotating blade (330). Specifically, assuming that the rotation direction of the rotating blade (330) is clockwise rotation with an inclination of 1 (331), the inclination is higher in the rotation direction and lower in the opposite direction (see FIG. 4a). Correspondingly, the inclination is the direction in which the inclination of the cylindrical surface of each blade of the fixed blade (340) is opposite to the inclination 1 (331) of the rotating blade (330), that is, the rotation of the rotating blade (330). It can be selectively configured as a slope 2 (341) formed in a direction opposite to the direction. In this case, slope 2 (341) can be formed in a manner that is lower in the direction opposite slope 1 (331) and higher in the opposite portion (see FIG. 4b).

  Therefore, when the rotary blade (330) rotates, the inclination 1 (331) first encounters the top dead center of each inclination while approaching the inclination 2 (341). As the rotation continues, a space is formed between the cylindrical surfaces when the blades face each other. This process creates steep vortices in the mixed fluid and maximizes cavitation.

  On the other hand, the angles of the inclination 1 (331) and the inclination 2 (341) can be determined in consideration of the length and width of the cylindrical surface of each blade and the flow rate or flow velocity of the inflowing mixed fluid. The angle of each tilt can be manufactured identically or can be manufactured at various angles according to the factors described.

  Referring to the drawing in FIG. 4 (a), the rotating vane (330) and the stationary vane (340) are swirled in the mixed fluid by tilting one side of the vane at a constant angle (β) with respect to the radial line. A vortex promoting part for promoting the generation of the above can be configured.

  Regarding the vortex promoting portions (337) and (347), the side surfaces of the blades protrude obliquely in a direction opposite to the flow direction of the inflowing mixed fluid. Therefore, the turbulent flow of the mixed fluid encountered with it is promoted. Occurrence of nanobubbles can be promoted by the occurrence of the cavitation phenomenon.

  In this case, it is desirable that the angles of the vortex promoting portions (337) and (347) formed in the blades of the rotating blade (330) and the fixed blade (340) are manufactured to be the same. However, the set angle is not limited to the above recommendations, and can be determined in various ways taking into account various factors including the size and length of each blade and the behavior of the mixed fluid.

  In the drawing, the vortex promoting portion is shown to be formed on either the rotating blade (330) or the fixed blade (340). However, the vortex promoting portion can be formed on both the rotary blade (330) and the fixed blade (340). Moreover, as shown in the drawing of FIG. 4 (b), the vortex promoting portion can be formed on both sides of each blade of the rotating blade (330) and the fixed blade (340).

  According to FIG. 1, the discharge outlet (315) is configured to discharge a mixed fluid containing nanobubbles generated by the interaction of the rotating blade (330) and the fixed blade (340) in the pump (300). (300) is formed on at least part of the upper part. The flow path formed along the height direction of the pump is such that the fluid that escapes from the discharge outlet (315) passes between the pump housing (310) and the inner wall (311) toward the outflow side of the pump (300). Provided to be able to flow. The fluid descending through this flow path is discharged to the outside through the outflow pipe (400) as a state containing nanobubbles.

  On the other hand, in the case of the outflow pipe (400) located on the outflow side of the pump, if the fluid discharged through it can be purified and mixed again by changing the pressure, the dissolution rate in the fluid can be reduced. Can be increased. For this purpose, this embodiment provides a configuration in which the diaphragm (500) is arranged inside the outflow pipe (400) as shown in FIG. According to FIGS. 5 and 6, the diaphragm is composed of a number of walls (510) arranged in parallel at the top and bottom with respect to the flow path in the outflow pipe (400). In this regard, the cavitation phenomenon can be promoted when the discharge fluid is further purified by pressure changes as it passes through the large caliber (530) after passing through the small caliber (520).

In addition, it is desirable for the diaphragm (520) to place a fixed size space between the continuous form of the small caliber (500) and the large caliber (530). The discharged fluid passing through it can be further purified and mixed when the cavitation phenomenon is further promoted by a sudden vacuum. In this case, it is desirable to determine the number of consecutive and repeated diaphragm small calibers (520) and large calibers (530) such that the fluid discharge pressure can be maintained at about 4 kg / m ² .

  Only the discharge pressure and design dimensions of the diaphragm (500) can be determined by taking into account various factors, such as the output or flow rate of the drive motor (320), and reflecting those factors in the design process.

  FIG. 7 or FIG. 8 is a second embodiment of the nanobubble and hydroxyl radical generator according to the present invention. Basically, these figures show the form of adding a pressure pump (P) to supply a specific pressure fluid to the nanobubble and hydroxyl radical generator. Here, the structure which connects a pressure pump (P) to the inflow side of a nano bubble and a hydroxyl radical generator is provided. In the nanobubble and hydroxyl radical generator (1 ′), as shown in FIG. 1, a rotary blade (330) and a fixed blade (340) are provided in a pump (300). In the pressure pump, an impeller and a chamber (not shown) are provided as shown in FIG. The nanobubble and hydroxyl radical generator are connected to the outlet pipe (400) of the pressure pump (P) through a joint. The joint can be equipped with an on / off valve for controlling or opening / closing the supplied fluid.

  The pressure pump (P) may include a pump motor (PM) and an impeller (not shown) attached to a drive shaft of the pump motor (PM). A recirculation pipe (600) for recirculating the pressure fluid from the outflow pipe (400) of the pressure pump (P) to the inflow pipe (200) can be connected via a joint. In this case, as shown in FIG. 1, the supply pipe (120) of the supply section (100) can be connected to the recirculation pipe (600). Since the venturi pipe (700) is connected to the portion where the supply pipe (120) and the recirculation pipe (600) meet, the above-described effects can be provided.

  From this configuration, the fluid pushed out from the pressure pump (P) through the connecting pipe (385) flows from an inlet formed in the lower part of the pump (300). The gas in the water is finely crushed by the pressure hit by each vane, mixed, and discharged through an outlet (383) located at the top of the pump. In this case, since the discharge pipe (800) is connected to the outlet (383) and an open / close valve is attached, the discharge pipe (800) also controls or opens / closes the flow rate of the discharge fluid. In addition, the diaphragm (500) configured as described above can be attached to the discharge tube (800), through which secondary cavitation can be promoted, as described above.

  Next, a non-chemical sewage treatment system for treating various sewage from aboveground ponds, rivers, homes or factories without using chemicals using the nanobubble and hydroxyl radical generator according to the present invention Will be explained.

  FIG. 9 or FIG. 10 shows the pressure of a compressor or pressure flotation system for air injection in a sewage sewage treatment plant using the nanobubble and hydroxyl radical generator of FIG. 1 (or the nanobubble and hydroxyl radical generator of FIG. 7). 1 illustrates a non-chemical sewage treatment system according to the present invention that separates solids and liquids without using a tank. FIG. 9 is a (a) front view and (b) plan view of a non-chemical sewage treatment system according to the present invention. FIG. 10 illustrates each tank of the non-chemical sewage treatment system of FIG. 9, in particular tank 1, without the compressor and pressure tank equipment for air injection of the solid-liquid separation system of the existing sewage sewage treatment plant It is a sketch to do. According to FIGS. 9a and 9b, the non-chemical sewage treatment system has a configuration in which a plurality of tanks (T1, T2, T3) are arranged in a line. Each tank has a constant width and length and is connected to each other in the width or length direction.

  As an example, each tank (T1, T2, T3) is separated by a certain distance by a wall formed in one tank. Therefore, the tank can be provided in a form connected in the width direction as shown in FIG. Since the tanks have runoffs (37) formed on the walls separating the tanks, the tanks are constructed in such a way that the water treated in each tank moves to the next tank.

  Looking at the detailed configuration of each tank by referring to FIG. 10, the tanks (T1, T2, T3) are divided into an influent water treatment chamber (20) and a treated water reservoir (40). The treated water transport pipe (6) and treated water return pipe (5) connected to the outflow pipe (400) and inflow pipe (200) of the nanobubble and hydroxyl radical generator (1) treat the inflow water in each tank. Inserted into the chamber (20) and the treated water reservoir (40), respectively. The end of the treatment transport pipe (6) inserted into the influent water treatment chamber (20) in each tank can be equipped with a spray nozzle that can utilize high pressure sprays of nanobubbles and pressure fluid.

  Further, with respect to tank 1 (T1), as shown in FIG. 10, a water supply pipe (4) can be connected via a raw water inlet (33) to supply contaminated raw water. Tanks 1 to 3 (T1, T2, T3) are connected via a run-off (37) formed in a partition wall between them. The influent water treatment chamber (20) and the treated water storage section (40) of each tank are connected via a through hole (34) formed in a wall (31) that divides them. A through hole (34) connecting the influent water treatment chamber (20) and the treated water reservoir (40) should be formed in the lower part of the partition wall (31) if the situation allows. In each tank influent treatment chamber (20), a specific cut-off valve (32) is provided at a fixed position between the end of the through hole (34) and the end of the treated water transport pipe (6). be able to. This cut-off valve is intended to prevent sewage or incoming water not treated by the high pressure nanobubbles provided by the nanobubble and hydroxyl radical generator (1) from moving to the next tank without being treated. . The spray nozzle at the end of the treated water transport pipe (6) should be located above the cut-off valve (32).

  Sludge removal means (10) for filtering sludge or foreign substances contained in the contaminated raw water or inflow water is provided in the upper part of the inflow water treatment chamber (20) of each tank (T1, T2, T3). This sludge removing means (10) has a structure in which a plurality of transport plates (14) are installed on the surface of a conveyor belt or chain (13). The conveyor belt (13) comprising each sludge removing means (10) is driven by rotating the sprocket (12) by a drive shaft (11a) extending from the motor (11) and crossing the upper part of each tank. As a result, the transport plate (14) on the surface of the belt filters contaminated raw water in the inflow water treatment chamber (20) or sludge or foreign matter floating on the inflow water, and the inflow water treatment chamber (20). It discharges through the sludge discharge channel (35, 36) located on the upper rear side.

  The operation of the non-chemical sewage treatment system according to the present invention will be described with reference to FIG. 9 or FIG. 10 in this configuration. After the sewage flows into the tank 1 (T1) through the water supply pipe (4), the nanobubbles and The hydroxyl radical generator 1 (1) generates nanobubbles by drawing purified water (treated water) from the treated water storage section (40) through the treated water return pipe (5). It then feeds the generated nanobubbles through the treated water transport pipe (6) to the influent water treatment chamber (20) of tank 1 (T1). The nanobubbles released into the inflow water treatment chamber (20) of the tank 1 (T1) collide with the cutoff valve (32) and then rise above the treatment chamber. At this time, sludge or foreign matter contained in the contaminated raw water rises together with the nanobubbles. Sludge or foreign matter that floats above the incoming water treatment chamber (20) is filtered backwards by the transport plate (14) when the removal means is driven. Accordingly, the filtered sludge or foreign matter is discharged outside through the sludge discharge passages (35, 36) located on the upper rear side of the influent water treatment chamber (20).

  On the other hand, after removing sludge and the like, the inflow water treatment chamber (20) of the tank 1 (T1), which is conveyed to the treated water storage part (40) through the through hole (34) formed in the partition wall (31). The treated water in) moves again through the run-off (37) to the influent water treatment chamber (20) of tank 2 (T2). Some of it is fed to the nanobubble and hydroxyl radical generator 1 (1) through the treated water return pipe (5) as described above.

  The treated water in tank 1 (T1) that has flowed into the influent water treatment chamber (20) of tank 2 (T2) is further sludged or contaminated by the nanobubble and hydroxyl radical generator 2 (2) above the treatment chamber (20). Then, it is filtered by the sludge removing means in the same manner as the tank 1 and then moves to the treated water storage section (40) through the through hole formed in the partition wall (31). Some of the treated water in the treated water storage section (40) passes again through the treated water return pipe (5) and is supplied to the nanobubble and hydroxyl radical generator 2 (2) to generate nanobubbles. Then, it moves through the run-off (37) to the influent water treatment chamber (20) of the tank 3 (T3).

  The treated water in tank 2 (T2) that has flowed into the influent water treatment chamber (20) of tank 3 (T3) is subjected to additional sludge or foreign matter above the treatment chamber (20) by the nanobubble and hydroxyl radical generator 3 (3). Then, it is filtered by the sludge removing means in the same manner as the tank 1 and then moves to the treated water storage section (40) through the through hole formed in the partition wall (31). Some of the treated water in the treated water reservoir (40) is passed through the treated water return pipe (5) and supplied to the nanobubble and hydroxyl radical generator 3 (3) to repeat the process of generating nanobubbles. At the same time, it is finally released through the run-off (37).

  Thus, in the non-chemical sewage treatment system according to the present invention, the sludge and foreign matter of the incoming raw water float on the tank by the nanobubbles released by the strong pressure from the nanobubbles and the hydroxyl radical generators 1 to 3. The foreign matter that has floated up, such as sludge, is carried by the sludge removing means and released to the outside. The fluid purified by this process flows into the second and third tanks and can eventually be used. The treated fluid can be very useful in restoring ecosystems because turbidity and heavy metals are broken down by nanobubbles and contain sludge hydroxyl radicals and high dissolved oxygen and anions.

  Furthermore, fluids treated according to the present invention have sterilization power and can be recycled. It uses a method of removing pollutants using nanobubbles and hydroxyl radicals without using coagulant treatment as in conventional methods to prevent secondary contamination by coagulant polymers that flow into rivers and the like. In addition, the system configuration does not require an existing sewage sewage treatment plant pressure tank and pressure compressor. Therefore, the power consumption rate is reduced by more than 50%, so it is very cost effective.

  The nanobubble and hydroxyl radical generator of the present invention has been described based on specific configurations and orientations with reference to the accompanying drawings. However, the present invention can be modified and changed by those skilled in the art. Such modifications and changes should be construed as being included within the scope of the present invention.

P: Pressure pump
PM: Pump mount
J: Joint
100: Air supply part
110: Flow control gauge
120: Supply pipe
200: Inflow pipe
210: Open / close valve
300: Pump
310: Pump housing
311: Inner wall
315: Release outlet
320: Drive motor
330: Rotating blade
331: Tilt 1
333: Small Caliber 1
335: Large Caliber 1
337: Vortex promotion part 1
340: Fixed blade
341: Tilt 2
343: Small Caliber 2
345: Large Caliber 2
347: Eddy promotion part 2
349: Tightening bolt
360: Motor shaft
370: Impeller
380: Chamber
381: Entrance
383: Exit
385: Connection pipe
400: Outflow pipe
410: Open / close valve
420: Outflow pipe
500: Diaphragm
510: Wall
520: Small Caliber Club
530: Large Caliber Club
540: Space
600: Recirculation pipe
700: Venturi tube
800: Release tube

Since the present invention does not require a compressor and pressure tank equipment for injecting air, the pump power of the bubble generator of the pressure levitation tank of the sewage sewage treatment plant can be reduced by 50%, and the number and installation area of equipment can be reduced. . In this way, economic feasibility can be significantly increased.
[Invention 1001]
A pump configured to introduce and release fluid;
A drive motor connected to one side of the pump;
A rotary vane attached to the rotary shaft of the drive motor, having a structure in which a plurality of vanes divided into large-diameter vanes and small-diameter vanes are stacked;
Fixed blades attached to the inner wall of the pump, which are divided into large-diameter blades and small-diameter blades, and a plurality of blades fitted into and coupled to the plurality of blades of the rotary blade at a predetermined interval, A fixed blade having a structure in which the small diameter blade and the large diameter blade of the fixed blade are stacked so as to correspond to the large diameter blade and the small diameter blade of the rotating blade;
A plurality of impellers attached to the rotating shaft of the drive motor and disposed in front of the pump in front of the rotating blades and the stationary blades;
A plurality of chambers disposed between the impellers such that fluid introduced by rotation of the impeller passes through the plurality of chambers;
An air supply unit configured to supply at least one of air, oxygen and ozone to the inlet side of the pump; and
A recirculation pipe configured to connect to the inlet side and the outlet side so that fluid discharged to the outlet side of the pump is recirculated to the inlet side of the pump
A nanobubble and hydroxyl radical generator comprising:
[Invention 1002]
The nanobubble and hydroxyl radical of the present invention 1001, wherein the air supply unit is connected to a recirculation pipe, and the connection part between the air supply pipe and the recirculation pipe includes a venturi pipe including a bottleneck portion and an enlarged portion Generator.
[Invention 1003]
The blade located on at least one side of each of the rotating blade and the fixed blade includes a circumferential surface having an inclined structure, and the inclination of the circumferential surface of each blade of the rotating blade is the rotation direction of the rotating blade. Formed in the opposite direction, and the inclination of the circumferential surface of each blade of the fixed blade is formed in a direction opposite to the direction in which the inclination of the circumferential surface of each blade of the rotating blade is formed. The nanobubble and hydroxyl radical generator according to the present invention 1001 is characterized in that:
[Invention 1004]
The nanobubble and hydroxyl radical generator according to the present invention 1001, wherein one or both of the rotating blade and the stationary blade includes a blade side surface having a vortex promoting portion formed so as to be inclined with respect to a radius line thereof.
[Invention 1005]
A septum portion is further provided on the outlet side of the pump to induce a change in the pressure of the discharged fluid to promote the generation of nanobubbles; and
The partition portion is
Bulkhead body provided on the outlet side;
A plurality of small diameter portions formed in the partition body; and
A plurality of large diameter portions connected to the small diameter portion and enlarged.
Including
The nanobubble and hydroxyl radical generator of the present invention 1001 characterized by
[Invention 1006]
The nanobubble and hydroxyl radical generator according to the present invention 1005, wherein the partition wall portion includes a plurality of partition wall portions spaced apart from each other and having a space portion therebetween.
[Invention 1007]
Use of the nanobubble and hydroxyl radical generator of any of the inventions 1001 to 1006, characterized in that it comprises one or more water tanks having a predetermined width and length and connected or arranged in series A system for treating sewage without using chemicals,
The water tank is partitioned by partition walls each having a discharge hole through which process water in the water tank flows or is discharged;
The water tank is partitioned into an influent water process chamber and a process water storage chamber;
A process water transfer pipe and a process water return pipe connected to the outlet side and the inlet side of the pump are disposed in the influent water process chamber and the process water storage chamber, respectively;
The incoming water process chamber of the front water tank is connected to the water supply line via a source water inlet port for supplying contaminated source water;
The process water flows from the inflow water process chamber to the process water storage chamber through a through-hole in a wall separating the inflow water process chamber and the process water storage chamber;
At least a portion of the fluid in the process water storage chamber is supplied to the influent water process chamber via the nanobubbles and hydroxyl radical generator;
A blocking plate is provided in the influent water process chamber that impacts the nanobubbles at a predetermined location between the through hole and the end of the process water transfer pipe;
A conveyor unit having a plurality of transfer plates for filtering sludge or impurities contained in the contaminated source water or influent water is provided at the top of the influent water process chamber.
system.

Claims (7)

A pump configured to introduce and release fluid;
A drive motor connected to one side of the pump;
A rotary vane attached to the rotary shaft of the drive motor, having a structure in which a plurality of vanes divided into large-diameter vanes and small-diameter vanes are stacked;
Fixed blades attached to the inner wall of the pump, which are divided into large-diameter blades and small-diameter blades, and a plurality of blades fitted into and coupled to the plurality of blades of the rotary blade at a predetermined interval, A fixed blade having a structure in which the small diameter blade and the large diameter blade of the fixed blade are stacked so as to correspond to the large diameter blade and the small diameter blade of the rotating blade;
A plurality of impellers attached to the rotating shaft of the drive motor and disposed in front of the pump in front of the rotating blades and the stationary blades;
A plurality of chambers disposed between the impellers such that fluid introduced by rotation of the impeller passes through the plurality of chambers;
An air supply unit configured to supply at least one of air, oxygen and ozone to the inlet side of the pump; and so that fluid discharged to the outlet side of the pump is recirculated to the inlet side of the pump A nanobubble and hydroxyl radical generator comprising a recirculation tube configured to connect to the inlet side and the outlet side.   2. The nanobubble and hydroxyl group according to claim 1, wherein the air supply unit is connected to a recirculation pipe, and a connection portion between the air supply pipe and the recirculation pipe includes a venturi pipe including a bottleneck portion and an enlarged portion. Radical generator.   The blade located on at least one side of each of the rotating blade and the fixed blade includes a circumferential surface having an inclined structure, and the inclination of the circumferential surface of each blade of the rotating blade is the rotation direction of the rotating blade. Formed in the opposite direction, and the inclination of the circumferential surface of each blade of the fixed blade is formed in a direction opposite to the direction in which the inclination of the circumferential surface of each blade of the rotating blade is formed. 2. The nanobubble and hydroxyl radical generator according to claim 1, wherein   2. The nanobubble and hydroxyl radical generator according to claim 1, wherein one or both of the rotating blade and the fixed blade include a blade side surface having a vortex promoting portion formed to be inclined with respect to a radius line thereof. . On the outlet side of the pump, there is further provided a partition part for inducing a change in the pressure of the discharged fluid in order to promote the generation of nanobubbles, and the partition part comprises
Bulkhead body provided on the outlet side;
2. The nanobubble and hydroxyl radical generator according to claim 1, comprising a plurality of small diameter portions formed in the partition wall body; and a plurality of large diameter portions connected to the small diameter portion and enlarged.   6. The nanobubble and hydroxyl radical generator according to claim 5, wherein the partition wall portion includes a plurality of partition wall portions spaced apart from each other and having a space portion therebetween. Nanobubbles and hydroxyl radical generation according to any one of claims 1 to 6, characterized in that it comprises one or more water tanks having a predetermined width and length and connected or arranged in series. A system for treating sewage without using chemicals using an apparatus,
The water tank is partitioned by partition walls each having a discharge hole through which process water in the water tank flows or is discharged;
The water tank is partitioned into an influent water process chamber and a process water storage chamber;
A process water transfer pipe and a process water return pipe connected to the outlet side and the inlet side of the pump are disposed in the influent water process chamber and the process water storage chamber, respectively;
The incoming water process chamber of the front water tank is connected to the water supply line via a source water inlet port for supplying contaminated source water;
The process water flows from the inflow water process chamber to the process water storage chamber through a through-hole in a wall separating the inflow water process chamber and the process water storage chamber;
At least a portion of the fluid in the process water storage chamber is supplied to the influent water process chamber via the nanobubbles and hydroxyl radical generator;
A blocking plate is provided in the influent water process chamber that impacts the nanobubbles at a predetermined location between the through hole and the end of the process water transfer pipe;
A conveyor unit having a plurality of transfer plates for filtering sludge or impurities contained in the contaminated source water or influent water is provided at the top of the influent water process chamber.
system.

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